The next states to vote are Connecticut, Rhode Island, Maryland, Delaware, and Pennsylvania. Three of those states are winner-take-all contests on the Republican side, and right now every delegate matters.

4. Additional fallout from the Panama Papers

It looks as though the Panama Papers won't be going away anytime soon, with new reports showing a connection between Hillary Clinton and some of the people named in the papers. This is easy fodder for Sen. Bernie Sanders (I-VT) to use against Clinton.

Oral arguments begin on Monday in United States v. Texas. This case challenges President Obama's executive action that shielded 5 million illegal immigrants from being deported. This is a pretty key case.

6. President Obama, Ashton Carter head to Saudi Arabia

President Obama will be in Riyadh on Thursday to discuss ISIS and other security issues at the Gulf Cooperation Council summit.

7. A British ship might be named "Boaty McBoatface"

While not exactly important, "Boaty McBoatface" was the winner in an online poll to name the UK's new ship. No word on whether or not the NERC will actually approve of the name.